the only trouble i have found with "gifting" characters is that they have no spells, skills or gear... so it costs you money to equip them. the gear problem is solved to some extent by starting in Outlands, but you would still need to by a couple of cheap items from the AH (if your other characters didnt pick up any relevant cloth drops or weapons along the way). levelling up all spells and only basic riding will cost you the best part of 200-300g. Epic riding is another 480 -600g depending on rep (of which you'll have none).

I have got around this (well delayed it anyway) by doing the Wintersaber Frostsaber grind in Winterspring (you start at lvl 58 ). Reaching exalted with Wintersaber Trainers allows you to by a 100% Frostsaber that only requires 75 riding skill, so i can purchase the 150 skill at a later date. the grind takes about 31 hours (depending on how busy Winterfall Villages is with other people farming it)